How to operate a grinder using an electro-hydraulic directional valve?

The grinder electro-hydraulic directional valve consists of a pilot valve electromagnetic slide valve and a main valve hydraulic slide valve. How to operate a grinder using an electro-hydraulic directional valve? Now let's talk about it.

This system is implemented by reversing the oil circuit through the grinder pilot valve. If the direction of oil flow in the control oil circuit does not change, the directional valve remains at the original end, the direction of the main oil circuit does not change, and the worktable can always move forward. Once the direction of the oil circuit changes, the valve core of the main valve will move in another operating direction according to the preset speed. If the direction of the main oil circuit is changed, the worktable will change direction and avoid dead points. In this way, the kinetic energy of the large inertia workbench can be converted into heat energy through energy-saving effects and consumed. The size of the oil port controlled by the main valve of the electro-hydraulic directional valve can be adjusted to extend the directional time △ t.

Due to its ability to reduce the impact on commutation, this method has played an important role for a long time. But its reversing parameters can only be pre-set and cannot be changed with changes in operating conditions. For systems with constantly changing working conditions, it is impossible to achieve the desired commutation. The grinder adopts an electro-hydraulic proportional valve hydraulic transmission reversing system.

Realize smooth and impact free reversing by automatically reducing traffic. This hydraulic transmission reversing system has good intelligent control over output displacement or speed, making the reversing process controllable, and therefore has a wide range of applications. Do you understand that the above is about the operation of grinding machines using electro-hydraulic directional valves? Hope to help you.